Last updated: May 3, 2025
In Rosario de Lerma, Argentina, staying informed about the UV Index is crucial for protecting your skin and overall health. Understanding UV levels helps you take necessary precautions against sunburn, skin damage, and long-term health issues. With a Cwb climate characterized by sunny days and high-altitude exposure, Rosario de Lerma presents specific risks during peak hours, particularly between 12:00 PM and 2:00 PM, when UV levels can soar to 8. By monitoring the UV Index, you can enjoy the sun safely while keeping your skin healthy and glowing.
The UV Index throughout the day paints a vivid picture of sun intensity. Starting off at a cool 0 at 07:00, the index gradually rises, hitting 1 by 08:00. By 10:00, the sun has gained strength, reaching a moderate 3, but it’s over noon that the real heat kicks in. At 12:00, the UV index soars to 7, peaking at an intense 8 by 13:00 and 14:00. As the afternoon wanes, the UV intensity starts to drop—slipping to 6 by 15:00, and further down to 4 at 16:00. The evening brings a gentle reprieve, with values falling back to 2 at 17:00, 1 at 18:00, and finally returning to 0 by 19:00. Remember to stay sun-safe, especially during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 1 | low | 45 min |
| 10:00 | 3 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index exhibits significant seasonal fluctuations, peaking during the winter and early spring months. From January to April, the index remains in the extreme category, with values ranging from 17 to 12 and a consistently short burn time of just 10 minutes. May through August presents a notable decrease, with a shift to very high values between 9 and 10, allowing for longer exposure times of 15 to 25 minutes. As the year progresses into September through November, the UV Index again escalates to the extreme range with indices of 12 to 16 and a reduced burn time of 10 minutes. December returns to the peak at 17. Visitors and residents are strongly advised to practice adequate sun protection during high-risk months, particularly from January to April and September to November, by using sunscreen, wearing protective clothing, and limiting sun exposure to mitigate the risk of skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Buenos Aires UVI | 14 | 13 | 11 | 7 | 5 | 4 | 4 | 6 | 8 | 10 | 13 | 14 |
| Rosario UVI | 14 | 13 | 11 | 8 | 5 | 4 | 4 | 6 | 8 | 11 | 13 | 14 |
| Mendoza UVI | 15 | 14 | 12 | 8 | 6 | 4 | 5 | 6 | 9 | 12 | 14 | 15 |
| Cordoba UVI | 15 | 13 | 12 | 9 | 6 | 4 | 5 | 7 | 9 | 12 | 14 | 15 |
| San Miguel de Tucuman UVI | 15 | 14 | 13 | 10 | 7 | 5 | 6 | 7 | 10 | 13 | 15 | 15 |
| Rosario de Lerma | 17 | 16 | 15 | 12 | 9 | 6 | 8 | 10 | 12 | 15 | 16 | 17 |